• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Recent content by pocketscience

  1. P

    512Ke and 800K drive issue

    Nothing special about the switch - I got mine from a local eBay seller.. He has measurements on the page so you should be able to find something to fit. https://www.ebay.com.au/itm/362678495096
  2. P

    Macintosh Classic II - Dim screen after logic and analog board recap

    Yeah, you should be able to put your meter across the pot legs and see the resistance change as you twiddle the adjustment..
  3. P

    Macintosh Classic II - Dim screen after logic and analog board recap

    Check the pots are still operating correctly with your meter. I can't recall the specs off top of head, other than PP1 which is 220 ohms - but they should have it written on them.
  4. P

    SE/30 Power Supply: Recap or ATX?

    @Fizzbinn thanks - so... grey black gold gold... (right to left)? 8 ohms?
  5. P

    SE/30 Black screen but works otherwise

    I assume you checked the brightness knob under the CRT...?
  6. P

    SE/30 Motherboard Repairs?

    These helped me restore a few old drives with great success: https://www.youtube.com/c/JDW11/search?query=floppy
  7. P

    SE/30 Power Supply: Recap or ATX?

    Hi, resurrecting the dead here, but I'm also trying to resurrect a dead "Apple Singapore" SE/30 PSU. I recapped it recently as it was drowning in cap juice. However it's still putting out about half the voltage it should be (on both 5V and 12V lines). I've found a suspect resistor that is...
  8. P

    512Ke and 800K drive issue

    So the drive has now been fully disassembled. New eject gear, everything lubed and oiled appropriately. The Mac will now happily, and quickly boot as well. But the issue is still the inject/eject. It operates freely in my hand - everything butter smooth, but disks get caught in that back left...
  9. P

    512Ke and 800K drive issue

    Even the 800K's don't all have the same inject/eject mech. The two I have here are different in that regard. Also there's at least 3 versions of the eject motor setup I've seen. Like Pokemon's - gotta collect them all! :)
  10. P

    512Ke and 800K drive issue

    Even when they both have a *red* stripe...
  11. P

    512Ke and 800K drive issue

    Correct, the Plus has red writing, and the 512Ke has black.
  12. P

    512Ke and 800K drive issue

    Well the zero track on both the 512Ke and Plus look identical. I did manage to determine the drive *can* work - I booted from FloppyEmu and inserted disk into the drive and did eventually mount the disk correctly - it just doesn't want to boot from it. Also has anyone documented the slight...
  13. P

    Apple Techstep I have almost all of the ROMs here and some info!

    I will need to buy some "newer" machines to use it on.. only have a Plus and a 512Ke currently.. :) The carts mine came with are: * CPU Tests Vol 3, v 1.0 * CPU Tests Vol 1, v 1.1.1 * SCSI HD Tests, v 1.0 The display on mine is very dim - I'm hoping I can replace it with a more recent 1604...
  14. P

    512Ke and 800K drive issue

    I didn't touch the zero track sensor - but will compare to my Plus - good idea. Would prefer to get it working with its original drive, but if that isn't possible will look at the later models as an option. Cheers,
  15. P

    Apple Techstep I have almost all of the ROMs here and some info!

    Recently picked up a Techstep on ebay.. following this thread with interest as it only came with 3 carts.
Top